Number of stateful or stateless session beans that are in the MethodReady state.

passivecount

RangeStatistic

Number of stateful session beans that are in Passive state.

The statistics available for EJB method invocations are listed in the
following table.

Table 18–2 EJB Method Statistics

Attribute Name

Data Type

Description

methodstatistic

TimeStatistic

Number of times an operation is called; the total time that is spent
during the invocation, and so on.

totalnumerrors

CountStatistic

Number of times the method execution resulted in an exception. This
is collected for stateless and stateful session beans and entity beans if
monitoring is enabled for the EJB container.

totalnumsuccess

CountStatistic

Number of times the method successfully executed. This is collected
for stateless and stateful session beans and entity beans if monitoring enabled
is true for EJB container.

executiontime

CountStatistic

Time (ms) spent executing the method for the last successful/unsuccessful
attempt to execute the operation. This is collected for stateless and stateful
session beans and entity beans if monitoring is enabled on the EJB container.

The statistics for EJB Session Stores are listed in the following table.

Table 18–3 EJB Session Store
Statistics

Attribute Name

Data Type

Description

currentSize

RangeStatistic

Number of passivated or checkpointed sessions currently in the store.

activationCount

CountStatistic

Number of sessions activated from the store.

activationSuccessCount

CountStatistic

Number of sessions successfully activated from the store

activationErrorCount

CountStatistic

Time (ms) spent executing the method for the last successful/unsuccessful
attempt to execute the operation. This is collected for stateless and stateful
session beans and entity beans, if monitoring is enabled on the EJB container.

passivationCount

CountStatistic

Number of sessions passivated (inactivated) using this store.

passivationSuccessCount

CountStatistic

Number of sessions successfully passivated using this store.

passivationErrorCount

CountStatistic

Number of sessions that could not be passivated using this store.

expiredSessionCount

CountStatistic

Number of expired sessions that were removed by this store.

passivatedBeanSize

CountStatistic

Total number of bytes passivated by this store, including total, minimum,
and maximum.

passivationTime

CountStatistic

Time spent on passivating beans to the store, including the total, minimum,
and maximum.

checkpointCount (enterprise profile only)

CountStatistic

Number of sessions checkpointed using this store.

checkpointSuccessCount (enterprise profile only)

CountStatistic

Number of sessions checkpointed successfully.

checkpointErrorCount (enterprise profile only)

CountStatistic

Number of sessions that couldn't be checkpointed.

checkpointedBeanSize (enterprise profile only)

ValueStatistic

Total number of bytes
checkpointed by the store.

checkpointTime enterprise profile only)

TimeStatistic

Time spent on checkpointing beans to the store.

The statistics available for EJB pools are listed in the following table.

Table 18–4 EJB Pool Statistics

Attribute Name

Data Type

Description

numbeansinpool

BoundedRangeStatistic

Number of EJB’s in the associated pool, providing an idea about
how the pool is changing.

numthreadswaiting

BoundedRangeStatistic

Number of threads waiting for free beans, giving an indication of possible
congestion of requests.

totalbeanscreated

CountStatistic

Number of beans created in associated pool since the gathering of data
started.

totalbeansdestroyed

CountStatistic

Number of beans destroyed from associated pool since the gathering of
data started.

jmsmaxmessagesload

CountStatistic

The maximum number of messages to load into a JMS session at one time
for a message-driven bean to serve. Default is 1. Applies only to pools for
message driven beans.

The statistics available for EJB caches are listed in the following
table.

Table 18–5 EJB Cache
Statistics

Attribute Name

Data Type

Description

cachemisses

BoundedRangeStatistic

The number of times a user request does not find a bean in the cache.

cachehits

BoundedRangeStatistic

The number of times a user request found an entry in the cache.

numbeansincache

BoundedRangeStatistic

The number of beans in the cache. This is the current size of the cache.

numpassivations

CountStatistic

Number of passivated beans. Applies only to stateful session beans.

numpassivationerrors

CountStatistic

Number of errors during passivation. Applies only to stateful session
beans.

numexpiredsessionsremoved

CountStatistic

Number of expired sessions removed by the cleanup thread. Applies only
to stateful session beans.

numpassivationsuccess

CountStatistic

Number of times passivation completed successfully. Applies only to
stateful session beans.

The statistics available for Timers are listed in the following table.